Home / 4,087.53-6,129.47-1,165.15

Finding the Fourth Proportional to 4,087.53, 6,129.47 and 1,165.15

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Solution

The fourth proportional to 4,087.53, 6,129.47 and 1,165.15 is: 1,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.53 : 6,129.47 = 1,165.15 : x
  2. Step 2: Convert to fraction form
    4,087.53/6,129.47 = 1,165.15/x
  3. Step 3: Cross multiply
    4,087.53x = 6,129.47 × 1,165.15
  4. Step 4: Simplify right side
    4,087.53x = 7,141,729.31
  5. Step 5: Solve for x
    x = 7,141,729.31/4,087.53
  6. Step 6: Final answer
    x = 1,747.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.